/* 
 * Android Operation Queue
 * http://code.google.com/p/operation-queue/
 * 
 * Copyright (C) 2012 Dong-u Seo
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *     
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.minz.opqueue;

import android.os.Handler;
import android.os.Message;

/**
 * 
 * @author dong_u
 *
 */
public abstract class OperationMessageHandler extends Handler {
	protected final static int QUEUE_FINISHED = 0;
	protected final static int QUEUE_ON_A_OPERATION_FINISHED = 1;
	protected final static int QUEUE_ON_A_OPERATION_CANCELED = 2;
	
	@Override
	public void handleMessage( Message msg ) {
		super.handleMessage( msg );
		switch ( msg.what ) {
		case QUEUE_FINISHED :
			onQueueFinished();
			break;
		case QUEUE_ON_A_OPERATION_FINISHED :
			onAOperationFinished(msg.arg1, msg.arg2);
			break;
		case QUEUE_ON_A_OPERATION_CANCELED :
			onAOperationCanceled(msg.arg1, msg.arg2);
			break;
		default :
			break;
		}
	}
	
	protected abstract void onAOperationCanceled( int rest , int init ) ;
	protected abstract void onAOperationFinished( int rest , int init ) ;
	protected abstract void onQueueFinished();
}
